Force initialization of instrumentationResultPrinter if its null.

Currently AJUR has hard coded per-SDK logic of when to initialize  instrumentationResultPrinter.

This commit simplifies the logic to just always attempt initialization
in either newApplication or onCreate. This should make AJUR more resilient
if the application lifecycle callback sequence ever changes, as it is speculated it does when instrumenting the system server itself.

PiperOrigin-RevId: 558162950

runner/android_junit_runner/java/androidx/test/runner/AndroidJUnitRunner.java

@@ -290,11 +290,14 @@ public Application newApplication(ClassLoader cl, String className, Context cont
       throws InstantiationException, IllegalAccessException, ClassNotFoundException {
     Log.i(LOG_TAG, "newApplication " + className);
     if (VERSION.SDK_INT >= 16) {
+      // install multidex as soon as possible
+      installMultidex();
+    }
+    if (instrumentationResultPrinter == null) {
       // Create instrumentationResultPrinter as early as possible to assist with
       // exception handling. InstrumentationResultPrinter use ConcurrentLinkedList,
       // and as that is desugared (see b/246860430) it cannot be instantiated before
       // multidex is loaded.
-      installMultidex();
       instrumentationResultPrinter = new InstrumentationResultPrinter();
     }
     return super.newApplication(cl, className, context);
@@ -307,12 +310,13 @@ public void onCreate(Bundle arguments) {
     Trace.beginSection("AndroidJUnitRunner#onCreate");
     try {
       super.onCreate(arguments);
-      if (VERSION.SDK_INT <= 15) {
+      if (instrumentationResultPrinter == null) {
         // Create instrumentationResultPrinter as early as possible to assist with
         // exception handling. InstrumentationResultPrinter use ConcurrentLinkedList,
         // and as that is desugared (see b/246860430) it cannot be instantiated before
         // multidex is loaded.
-        // On API level <= 15, #onCreate is called earlier than #newApplication. See
+        // On API level <= 15, #onCreate is called earlier than #newApplication so it
+        // can be null, or if the system server itself is being instrumented. See
         // MonitoringInstrumentation#onCreate.
         instrumentationResultPrinter = new InstrumentationResultPrinter();
       }